What exactly was a model-slash-actress? Did it mean she was a model or an actress or a model and an actress? She certainly wasn’t a hotel clerk. Maybe electrons were the Tiffanys of the microcosm, and that explained their wave-slash-particle duality. Maybe they weren’t really electrons at all. Maybe they were just working part-time at being electrons to pay for their singlet-state lessons.

Darlene still hadn’t called by seven o’clock. I stopped fanning myself and tried to open a window. It wouldn’t budge. The problem was, nobody knew anything about quantum theory. All we had to go on were a few colliding electrons that nobody could see and that couldn’t be measured properly because of the Heisenberg uncertainty principle. And there was chaos to consider, and entropy, and all those empty spaces. We didn’t even know who May Robson was.

At seven-thirty the phone rang. It was Darlene.

“What happened?” I said. “Where are you?”

“At the Beverly Wilshire.”

“In Beverly Hills?”

“Yes. It’s a long story. When I got to the Rialto, the hotel clerk, I think her name was Tiffany, told me you weren’t there. She said they were booked solid with some science thing and had had to send the overflow to other hotels. She said you were at the Beverly Wilshire in room ten-twenty-seven. How’s David?”

“Impossible,” I said. “He’s spent the whole conference looking at Deanna Durbin’s footprints at Grauman’s Chinese Theatre and trying to talk me into going to the movies.”

“And are you going?”

“I can’t. Dr. Gedanken’s giving the keynote address in half an hour.”

“He is?” Darlene said, sounding surprised. “Just a minute.” There was a silence, and then she came back on and said, “I think you should go to the movies. David’s one of the last two charming men in the universe.”